NSI Industries CSH50F - Tapping Screw, 1/4 in. Size, 3-1/4 in. length, 5/16 in. head width, Hex head, Blue head color, CD7 drill stock number, Slotted drive type, 100 per pack
NSI Industries

CSH50F

Alternate Item Number: 87150

UPC: 639720871500

Contact for Pricing

Minimum Qty: 100

Multiplier: 100

*Contact for lower quantities*

Overview

The NSi Industries CSH50F tapping screw is a precision-engineered industrial fastener designed for creating threaded holes in metal, plastic, and composite materials without pre-drilling. This 1/4-inch diameter screw features a 3-1/4-inch length, providing robust holding power for heavy-duty applications in manufacturing, construction, and machinery repair. The hex head with a 5/16-inch width ensures secure tool engagement and prevents cam-out during installation, while the distinctive blue head color enables quick visual identification on busy job sites. The CD7 drill stock number indicates compatibility with standard drilling equipment, allowing for efficient one-step installation. The slotted drive type accommodates standard screwdrivers, making it ideal for both automated assembly lines and manual installation scenarios. Packaged in a 100-piece bulk count, the CSH50F is optimized for high-volume industrial use where consistency and reliability are critical. Unlike standard machine screws, tapping screws eliminate the need for separate tapping operations, reducing labor time by up to 40% in production environments. The screw's sharp, self-tapping threads cut into the material as it's driven, creating a secure mating thread that resists loosening under vibration. Common applications include securing metal panels to frames, assembling machinery components, and mounting electrical enclosures where quick, permanent fastening is required. The CSH50F meets industrial standards for mechanical fasteners and is manufactured in the USA by NSi Industries, ensuring consistent quality and traceability.
  • 1/4" diameter x 3-1/4" length for heavy-duty fastening
  • Hex head (5/16" width) for secure tool engagement
  • Blue head color for quick visual identification
  • Self-tapping design eliminates pre-drilling in metal/plastic
  • Slotted drive type compatible with standard screwdrivers
  • CD7 drill stock number for compatibility with drilling equipment
  • 100-piece bulk packaging for industrial use
  • Manufactured in USA by NSi Industries

Specifications

Application
Electrical, Plumbing, Heating and Air Conditioning Industries
Head Color
Blue
Head Type
Hex
Head Width
5/16 IN
Length
3.25 IN
Size
1/4 IN
Special Features
Features: One Masonry Drill Packaged with Every Jar
Type
Tapping Screw
Package Dimensions (L x W x H)
4.5 IN x 4.5 IN x 7.25 IN
Package Dimensions (L x W x H)
11.43 cm x 11.43 cm x 18.415 cm
Package Weight (Imperial)
3.110 L
Package Weight (Metric)
1.411 kg
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Frequently Asked Questions about NSI Industries

What technical support does NSi Industries offer?

NSi Industries offers dedicated technical support through their toll-free technical support line at 888.500.4598. They are committed to customer satisfaction and promise to make every reasonable effort to remedy any product or service issues. Additionally, customers can contact their customer service team at 800.321.5847 or email [email protected] for further technical assistance.

What are the key features of NSi Industries products?

NSi Industries products feature exceptional versatility, reliability, and safety across multiple industrial automation categories. Key features include insulation piercing connectors with no wire stripping required, watertight and corrosion-free designs, wide wire range compatibility (from #14 AWG to 750 MCM), and the ability to install on energized conductors. Their product lines like Easy-Tap™ Connectors and TORK® Digital Timers demonstrate advanced capabilities such as turbo spacers, double shear-head bolts, astronomic scheduling, and enhanced switching technologies.

What environmental ratings do NSi Industries products have?

NSi Industries enclosures feature robust environmental ratings, including IEC 60529 IP66 certification, NEMA Type 1, 2, 3, 4, 4X, 12, and 13 ratings, and UL/CSA standards. Their products are designed for both indoor and outdoor applications, with protection against dust, water, corrosion, and extreme temperatures ranging from -40°F to 266°F.

How are NSi Industries products typically installed?

NSi Industries products are typically installed using detailed mechanical and digital wiring diagrams that specify precise connection methods for various voltage configurations (120V, 208V, 240V, 277V, 480V). Installation involves carefully following product-specific wiring schematics, which include clear terminal block connections, ground wire specifications, and phase alignment requirements. Professional electricians and technicians should reference the specific product's wiring diagram to ensure correct installation and electrical compliance.

What industries and applications are NSi Industries products used for?

NSi Industries provides electrical and automation products for diverse industrial applications, including lighting control, electrical enclosures, wire management, connectors, and sensor technologies. Their product lines serve commercial, industrial, and infrastructure markets with solutions for electrical infrastructure, control systems, and safety-critical environments.

What are the main product lines offered by NSi Industries?

NSi Industries offers a comprehensive range of industrial products including TORK® Photocontrols, Polaris™ Lighting Controls, Easy-Twist™ Grounding Solutions, Miniterms, Cable Ties, Connectors, Enclosures, Occupancy Sensors, and Wire Management systems. Their product lines span electrical components, control devices, and industrial automation accessories designed for diverse applications in commercial and industrial settings.

What accessories are available for NSi Industries products?

NSi Industries offers a range of accessories for their product lines, including photocontrol accessories like replacement caps, mounting brackets, and receptacles. Specific accessories include shorting caps, open caps, 3-pin and 7-pin receptacles, and utility mounting brackets for conduit photocontrols. For specialized applications, NSi recommends contacting their customer service team to discuss custom accessory needs.